From Workshop Dust to Digital Engineering – Inside Vacvator’s Goulburn Factory
What began with a vacuum truck design drawn in the dust of the workshop floor has grown into a sophisticated Australian manufacturing operation. Editor-at-Large Howard Shanks visits Vacvator’s Goulburn factory to see how traditional tradesmanship, modern engineering and some clever technology are producing specialist trucks for operators across Australia and New Zealand.
Key Points
- Vacvator celebrates 20 years of Australian manufacturing, having started with its first vacuum truck design sketched into the dust on a workshop floor.
- The company’s Goulburn manufacturing facility has more than doubled in size over the past five years, supporting increased production and in-house manufacturing.
- Australian steel, skilled tradespeople and computer-aided engineering remain central to Vacvator’s manufacturing operations.
- Modern Euro VI truck platforms present new engineering challenges, requiring careful integration of specialist vacuum equipment with sophisticated vehicle systems.
- Intelligent onboard weighing technology helps operators comply with vehicle mass limits by automatically preventing further loading when the configured limit is reached.
- Purpose-designed vacuum blower silencers reduce operating noise, helping contractors work with less disturbance in suburban and residential environments.
- Vacvator continues to develop new equipment and technology while expanding its customer base throughout Australia and into New Zealand.
Behind every Vacvator truck is a considerable amount of skilled fabrication. Here, a welder joins steel components as another specialised vacuum excavation truck begins taking shape.
From Humble Beginnings
There is something wonderfully Australian about a business that started with a few blokes working late into the night drawing plans in the dust on a workshop floor. No expensive CAD software, no engineering department full of people wearing expensive spectacles, and certainly no committee meeting to decide whether building a vacuum truck was a good idea. Just a few blokes who needed a machine, thought they’d have a go at building one, and apparently couldn’t find a sheet of paper.
That, strangely enough, was the beginning of Vacvator. During my visit, General Manager Con Alvanos explained how owner Andrew Rowlands was running another business that needed a vacuum truck. He couldn’t find one to buy, so he tossed the idea around with several workers who had the necessary engineering knowledge and manufacturing skills. You can almost hear the conversation: ”I reckon we can build that!”
Together they built their first machine. Con recalls conversations with Andrew of those early designs being literally sketched into the dust of the workshop floor with a piece of chalk. The informal system had one rather obvious disadvantage. An enthusiastic apprentice armed with a broom could erase several hours of engineering development before the next morning’s smoko.
Long before computers took over the drawing office, Vacvator’s first vacuum truck was reportedly sketched into the dust on a workshop floor. A remarkably economical design process, although one that could have ended rather abruptly with the arrival of an enthusiastic apprentice and a broom. AI-generated historical illustration.
Fortunately, the ideas survived, and so did the business. Two decades later Vacvator manufactures specialist vacuum trucks for customers throughout Australia. The workshop-floor sketches have given way to sophisticated computer-aided design, and the original operation has grown into a considerably larger manufacturing facility. One important principle remains unchanged: the company still designs and manufactures its own equipment.
Australian Manufacturing at Its Best
Having spent more years than I care to remember around heavy machinery, I’ve always appreciated the difference between a machine designed by someone who understands how it’s used and one designed by someone who has only ever seen it on a computer screen. There’s an enormous gap between something that looks impressive on a monitor and something that will withstand years of abuse on a construction site.
Walking through Vacvator’s Goulburn factory is a useful reminder that building a modern vacuum excavation truck involves far more than welding up a large tank and then bolting it onto the back of a truck chassis. There are high-capacity vacuum systems, water tanks, hydraulic equipment, intricate pipework, electronic controls and a serious amount of structural engineering. Much of that equipment begins life as raw steel, right in Goulburn.
Con explained that Vacvator buys Australian-made steel, then cuts, bends, welds and fabricates the components required. Rather than relying entirely on outside suppliers for major assemblies, the company keeps control over much of the manufacturing process. Design changes can be introduced without waiting for another manufacturer. Components can be modified to meet customer requirements, and quality can be monitored throughout production.
Modern computer-aided design plays a central role. Engineers develop the designs and produce detailed manufacturing drawings that go straight to the workshop. The contrast with those original drawings in the workshop dust could hardly be greater. Yet there is still an essential relationship between the engineering office and the tradespeople on the factory floor. A computer might calculate the loads, produce the drawings and flag potential problems. It still takes skilled people to turn those designs into something that works reliably in the field. As a tradesman myself, I have considerable respect for that combination of engineering knowledge and practical manufacturing skill.
What looks like an enormous steel puzzle is part of the precision fabrication process. Internal bracing, mounting points and pipe connections are assembled before the finished components become part of a Vacvator truck.
A Factory Built for the Future
The growth of the business has brought substantial investment in manufacturing facilities. Con said Vacvator’s factory footprint has more than doubled in the past five years, with major improvements to fabrication, painting, assembly and storage. The expansion includes dedicated assembly areas, increased fabrication capacity and modern abrasive-blasting and paint-baking facilities.
These improvements are about more than simply having extra room to park trucks. Separating manufacturing operations into dedicated areas allows individual processes to be better organised and controlled. Fabricated components can move through preparation, painting and assembly in a more structured manner. The investment in blasting and painting facilities is particularly important for equipment that spends much of its working life around mud, water and abrasive material. There’s little point engineering a sophisticated machine if its protective finish starts looking like something dragged out of a farm dam after six months.
The expanded capacity also gives Vacvator greater flexibility as customer demand increases. For Con and his team, maintaining quality and consistency remains central as production grows. And there’s something particularly satisfying about seeing Australian tradespeople producing sophisticated machinery rather than merely assembling imported components. It’s the sort of manufacturing capability we ought to be encouraging.
Vacvator’s new purpose-built sandblasting and painting facility at Goulburn represents another investment in the company’s manufacturing capabilities. The dedicated facility allows large fabricated components to be prepared and finished as part of the production process.
Engineering Around Modern Truck Technology
Of course, manufacturing the vacuum equipment is only part of the challenge. It also needs to integrate with the increasingly sophisticated truck chassis carrying it. Once upon a time, fitting specialist equipment to a truck was a relatively straightforward mechanical exercise. These days, with Euro VI emissions systems and enough electronic intelligence to make a space shuttle look mildly like a piece of vintage machinery, things have become considerably more complicated. Bodybuilders must carefully consider power take-off arrangements, available payload and weight distribution.
Vacvator’s development of its latest heavy-duty vacuum excavation trucks shows how these requirements are influencing equipment design. The company has selected the IVECO S-Way platform for its HD8 range. Con explained the importance of integrating the vacuum equipment with the modern chassis while retaining suitable payload capacity. The equipment must perform demanding excavation work without interfering with the truck’s operating systems or compromising legal axle loadings.
This is where the company’s engineering expertise becomes particularly valuable. Rather than treating the truck and vacuum equipment as two separate machines, Vacvator designs them to function as an integrated package. When you consider the number of mechanical, hydraulic and electronic systems involved, there’s a good deal more to the process than simply finding somewhere to mount a few hydraulic hoses.
There’s considerably more technology behind a modern vacuum excavation truck than meets the eye. The Vacvator HD 8-90 NDD features sophisticated electronic controls, with onboard weighing technology helping operators monitor vehicle loading and maintain compliance with Australian road regulations.
Keeping Operators Within Legal Limits
One of the more interesting developments Con discussed was Vacvator’s onboard weighing technology. For vacuum excavation operators, managing vehicle weight presents a particular challenge. Unlike a conventional truck carrying a known payload, a vacuum excavator continually collects material of varying density. Dry sand, wet clay and slurry all have different weights, and none comes with a convenient label explaining how many tonnes you’ve just sucked into the tank.
It’s not particularly practical for an operator to climb out with a calculator and estimate the weight of everything disappearing into the spoil tank. Relying on the traditional Australian measurement of “she’ll be right, mate” is unlikely to impress an NHVR compliance officer.
Vacvator has addressed the problem with an integrated onboard weighing system connected to its CAN bus electronic control network. The system monitors vehicle loading and automatically stops the vacuum blower when the configured weight limit is reached. This prevents the operator from continuing to load the spoil tank and helps avoid overloading. No arguments, no optimistic estimates and no opportunity to squeeze in one last bucketful. There is one practical exception, however. The operator can briefly reactivate the blower to clear material from the lines, pack up and get going once the preset weight limit has been reached.
The electronic system can also record when certain safety functions have been overridden, providing an additional level of operational accountability. It’s a clever piece of engineering that addresses a very practical problem. For operators, staying within legal mass limits is essential. For equipment manufacturers, developing technology that helps achieve this is becoming an increasingly important part of the design process. It’s also a good example of how sophisticated electronics can make an operator’s job easier rather than simply giving them another screen to stare at.
Con Alvanos demonstrates how Vacvator uses custom-designed, 3D-printed jigs to improve accuracy and efficiency during fabrication. It’s another example of how modern technology is helping streamline the manufacturing process at the company’s Goulburn factory.
Powerful Vacuum, Without the Racket
Another interesting aspect of Vacvator’s engineering is something easily overlooked when discussing vacuum excavation equipment: noise. Anyone who has stood beside a large industrial vacuum blower knows these things aren’t naturally inclined towards whispering. Left to their own devices they can produce enough mechanical racket to make a quiet suburban street sound like an industrial estate. That’s hardly ideal when the machine is operating outside someone’s front window while they’re trying to enjoy their morning coffee.
Con explained that Vacvator has invested considerable engineering effort into reducing operating noise through carefully designed silencing systems. The company’s vacuum blower installations incorporate purpose-designed silencers that help control noise while maintaining the suction performance required for demanding excavation work. Vacvator reports operating noise levels of around 82 dBA even on its 5000cfm blowers under specified conditions. It doesn’t make a powerful vacuum truck silent, but it certainly makes the prospect of one working outside your front fence considerably more palatable.
Two substantial vacuum tank assemblies await further work outside the Goulburn factory. From raw steel to finished vacuum excavation equipment, each build involves numerous stages of fabrication, fitting and finishing.
Built to Last, Designed to Evolve
Another aspect of the Vacvator story that particularly interested me was the company’s approach to the working life of its equipment. These are substantial investments for contractors, and operators naturally expect them to provide many years of reliable service. Con explained that some of the company’s earliest machines, built around 20 years ago, remain in operation. That’s a considerable achievement for equipment working in an environment involving water, abrasive material, high-pressure systems and demanding conditions.
It’s hardly the environment you’d choose if your objective was to keep machinery looking pristine. The company continues to develop and improve its products as new technology becomes available. Its in-house engineering and manufacturing capabilities provide a considerable advantage when modifying existing designs or incorporating new equipment. Customers can benefit from ongoing improvements without the manufacturer having to start from scratch every time a new operating requirement emerges.
Vacvator supports its manufactured components with a three-year warranty, backed by its technical knowledge and service capabilities. There is considerable value in being able to speak with the people who actually designed and built the equipment when something needs attention, particularly when those people are still working in the same Australian factory.
The finished product begins to emerge as the vacuum tank, access platforms and articulated suction boom come together. It’s a far cry from the workshop-floor sketches that launched the Vacvator business two decades ago.
From Goulburn to New Zealand
Vacvator’s growth has also taken the business beyond Australia’s shores. Con explained that the company is now exporting into New Zealand, with equipment operating in both the North and South Islands. It’s another step forward for a manufacturer whose beginnings were considerably more modest. Meanwhile, development continues on additional equipment, including dry excavation technology and specialist drain-cleaning applications. These projects show that the engineering team is looking beyond its existing product range as customer requirements evolve.
After spending time with Con and learning about the manufacturing operation, what impressed me most was the combination of traditional manufacturing skills and sophisticated modern technology. There’s still plenty of cutting, bending, welding and machining involved. But those essential trades now operate alongside computer-aided engineering, electronic safety systems, intelligent onboard weighing and carefully developed noise-control technology. Throughout it all, the company has maintained a strong commitment to Australian design and manufacturing.
It’s a considerable journey from drawing the first vacuum truck in a layer of workshop dust to building machines sophisticated enough to monitor their own loading, communicate with the truck’s electronic systems and control the noise generated by enormous vacuum blowers. Not bad for a business that started with a few blokes drawing truck pictures on the floor.
Watch: Inside Vacvator’s Goulburn Factory – 5-Minute Torque with Con Alvanos
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